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Brad Liedtke (Former Employee)

Science and Products

Clearing snow from solar panels
Clearing snow from solar panels
Clearing snow from solar panels
Clearing snow from solar panels

Clearing snow from solar panels

Clearing snow from solar panels

Clearing snow from solar panels which provide power to an instream Passive Integrated Transponder tag detection system in the Wind River, WA. The system detects tagged juvenile and adult Steelhead for population assessment and migratory data.

By
Western Fisheries Research Center, Columbia River Research Laboratory (CRRL)
Clearing snow from solar panels

Clearing snow from solar panels

Clearing snow from solar panels

Clearing snow from solar panels which provide power to an instream Passive Integrated Transponder tag detection system in the Wind River, WA. The system detects tagged juvenile and adult Steelhead for population assessment and migratory data.

By
Western Fisheries Research Center, Columbia River Research Laboratory (CRRL)

Gas bubble trauma progression and mortality in sculpin, threespine stickleback, and Northern pikeminnow Gas bubble trauma progression and mortality in sculpin, threespine stickleback, and Northern pikeminnow

We examined the progression of gas bubble trauma (GBT) and associated mortality in sculpin (Cottus spp.), threespine stickleback (Gasterosteus aculeatus), and Northern pikeminnow (Ptychocheilus oregonensis) exposed to three levels of total dissolved gas (TDG; 120, 125, and 130% saturation) in laboratory experiments. Sculpin were most sensitive to elevated TDG followed by stickleback and...
Authors
Kenneth F. Tiffan, Brad D. Liedtke
By
Ecosystems Mission Area, Western Fisheries Research Center

Nonsalmonid gas bubble trauma investigations Nonsalmonid gas bubble trauma investigations

From 2020 to 2024, a new spill program was implemented to aid the downstream passage of juvenile salmonids at mainstem dams on the Snake and Columbia rivers. Under this program, the total dissolved gas (TDG) cap was increased to 125% and monitoring of nonsalmonids for gas bubble trauma (GBT) became a requirement. The primary objective of this work and report was to measure the incidence...
Authors
Kenneth Tiffan, Brad D. Liedtke, Scott Louis Benson
By
Ecosystems Mission Area, Western Fisheries Research Center

Monitoring native nonsalmonids for the incidence of gas bubble trauma downstream of Snake and Columbia River dams during the spring spill season, 2022 Monitoring native nonsalmonids for the incidence of gas bubble trauma downstream of Snake and Columbia River dams during the spring spill season, 2022

In 2020, a new spill program was implemented to aid the downstream passage of juvenile salmonids at mainstem dams on the Snake and Columbia rivers. Under this program, the total dissolved gas (TDG) cap was increased to 125% and monitoring of native nonsalmonids for gas bubble trauma (GBT) became a requirement. The primary objective of this work was to measure the incidence and severity...
Authors
Kenneth F. Tiffan, Brad D. Liedtke, Dalton Dirk Lebeda, Scott Louis Benson, Joe J. Warren
By
Ecosystems Mission Area, Western Fisheries Research Center, Columbia River Research Laboratory (CRRL)

Nonsalmonid gas bubble trauma investigations Nonsalmonid gas bubble trauma investigations

From 2020 to 2023, a new spill program was implemented to aid the downstream passage of juvenile salmonids at mainstem dams on the Snake and Columbia rivers. Under this program, the total dissolved gas (TDG) cap was increased to 125% and monitoring of nonsalmonids for gas bubble trauma (GBT) became a requirement. The primary objective of this work and report was to measure the incidence...
Authors
Kenneth Tiffan, Brad D. Liedtke, Scott Louis Benson
By
Ecosystems Mission Area, Western Fisheries Research Center

Science and Products

Clearing snow from solar panels
Clearing snow from solar panels
Clearing snow from solar panels
Clearing snow from solar panels

Clearing snow from solar panels

Clearing snow from solar panels

Clearing snow from solar panels which provide power to an instream Passive Integrated Transponder tag detection system in the Wind River, WA. The system detects tagged juvenile and adult Steelhead for population assessment and migratory data.

By
Western Fisheries Research Center, Columbia River Research Laboratory (CRRL)
Clearing snow from solar panels

Clearing snow from solar panels

Clearing snow from solar panels

Clearing snow from solar panels which provide power to an instream Passive Integrated Transponder tag detection system in the Wind River, WA. The system detects tagged juvenile and adult Steelhead for population assessment and migratory data.

By
Western Fisheries Research Center, Columbia River Research Laboratory (CRRL)

Gas bubble trauma progression and mortality in sculpin, threespine stickleback, and Northern pikeminnow Gas bubble trauma progression and mortality in sculpin, threespine stickleback, and Northern pikeminnow

We examined the progression of gas bubble trauma (GBT) and associated mortality in sculpin (Cottus spp.), threespine stickleback (Gasterosteus aculeatus), and Northern pikeminnow (Ptychocheilus oregonensis) exposed to three levels of total dissolved gas (TDG; 120, 125, and 130% saturation) in laboratory experiments. Sculpin were most sensitive to elevated TDG followed by stickleback and...
Authors
Kenneth F. Tiffan, Brad D. Liedtke
By
Ecosystems Mission Area, Western Fisheries Research Center

Nonsalmonid gas bubble trauma investigations Nonsalmonid gas bubble trauma investigations

From 2020 to 2024, a new spill program was implemented to aid the downstream passage of juvenile salmonids at mainstem dams on the Snake and Columbia rivers. Under this program, the total dissolved gas (TDG) cap was increased to 125% and monitoring of nonsalmonids for gas bubble trauma (GBT) became a requirement. The primary objective of this work and report was to measure the incidence...
Authors
Kenneth Tiffan, Brad D. Liedtke, Scott Louis Benson
By
Ecosystems Mission Area, Western Fisheries Research Center

Monitoring native nonsalmonids for the incidence of gas bubble trauma downstream of Snake and Columbia River dams during the spring spill season, 2022 Monitoring native nonsalmonids for the incidence of gas bubble trauma downstream of Snake and Columbia River dams during the spring spill season, 2022

In 2020, a new spill program was implemented to aid the downstream passage of juvenile salmonids at mainstem dams on the Snake and Columbia rivers. Under this program, the total dissolved gas (TDG) cap was increased to 125% and monitoring of native nonsalmonids for gas bubble trauma (GBT) became a requirement. The primary objective of this work was to measure the incidence and severity...
Authors
Kenneth F. Tiffan, Brad D. Liedtke, Dalton Dirk Lebeda, Scott Louis Benson, Joe J. Warren
By
Ecosystems Mission Area, Western Fisheries Research Center, Columbia River Research Laboratory (CRRL)

Nonsalmonid gas bubble trauma investigations Nonsalmonid gas bubble trauma investigations

From 2020 to 2023, a new spill program was implemented to aid the downstream passage of juvenile salmonids at mainstem dams on the Snake and Columbia rivers. Under this program, the total dissolved gas (TDG) cap was increased to 125% and monitoring of nonsalmonids for gas bubble trauma (GBT) became a requirement. The primary objective of this work and report was to measure the incidence...
Authors
Kenneth Tiffan, Brad D. Liedtke, Scott Louis Benson
By
Ecosystems Mission Area, Western Fisheries Research Center
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